an instrument for determining the specific gravity of a liquid, commonly consisting of a graduated tube weighted to float upright in the liquid whose specific gravity is being measured.
更多hydrometer例句
The greater the amount of solid matter dissolved in the sirup, the higher will be hydrometer float.
For determining the density of sirup, a sirup gauge, or hydrometer, will be found useful.
Regardless of the kind of juice, the hydrometer should register 25 degrees for perfect jelly.
It should be wider than the hydrometer, and always filled to the brim.
The temperature is taken, and the hydrometer is immersed in the fluid.